Instructor Manual
** All Chapters included
** Solutions and Answers for
Even-Numbered Problems
,Table of Contents are given below
1. Introduction
2. Basic Descriptive Statistics: Tables, Percentages, Ratios and Rates, and Graphs
3. Measures of Central Tendency
4. Measures of Variation
5. The Normal Curve
6. Introduction to Inferential Statistics: Sampling and the Sampling Distribution
7. Estimation Procedures
8. Hypothesis Testing I: The One-Sample Case
9. Hypothesis Testing II: The Two-Sample Case
10. Hypothesis Testing III: The Analysis of Variance
11. Hypothesis Testing IV: Chi Square
12. Bivariate Association for Nominal- and Ordinal-Level Variables
13. Association Between Variables Measured at the Interval-Ratio Level
14. Elaborating Bivariate Tables
15. Partial Correlation and Multiple Regression and Correlation
,Instructor Manual
Healey, Statistics: A Tool for Social Research and Data Analysis, 12e, 2027, 9798214158556;
Chapter 01: Introduction
TABLE OF CONTENTS
Purpose and Perspective of the Chapter .............................................................................................2
Chapter Objectives.............................................................................................................................2
What’s New in This Chapter ...............................................................................................................2
Chapter Outline .................................................................................................................................3
Solutions and Answers for Even-Numbered Problems: Chapter 1 ........................................................6
a
1
, PURPOSE AND PERSPECTIVE OF THE CHAPTER
The purpose of this chapter is to introduce students to the role of statistics in the research process. The
discussion is guided by the “Wheel of Science” as conceptualized by Walter Wallace. The text always
presents statistics in the context of the research enterprise. That is, statistics are presented as useful
tools for answering sociological questions and testing social science theories, never as ends in
themselves.
The chapter also distinguishes between descriptive and inferential statistics and univariate, bivariate,
and multivariate statistics. The distinction between discrete and continuous variables and the concept of
level of measurement is presented in this chapter and the latter is stressed throughout the text as an
organizational device and as a major criterion for selecting statistics appropriately. Exercises are
provided at the end of the chapter for reviewing the characteristics of the three levels of measurement
used in this text.
CHAPTER OBJECTIVES
The following objectives are addressed in this chapter:
1-1 Explain the role of statistics in social research and data analysis.
1-2 Identify the key stages and terms in social scientific research.
1-3 Distinguish between descriptive and inferential statistics.
1-4 Provide examples of discrete and continuous variables.
1-5 Describe three levels of measurement and cite examples of each.
[return to top]
WHAT’S NEW IN THIS CHAPTER
The following elements are improvements in this chapter from the previous edition:
• Added guidance on how to adopt a growth mindset to learning about statistics in a section called
Do Statistics Make You Nervous?
• Included a new illustration on causal diagrams in Figure 1.1.
• Offered new Statistics in Everyday Life box on the 2024 U.S. presidential election.
• Created a new Statistics in Everyday Life box on same-sex marriage based on a 2024 Gallup Poll.
• Included a new illustration of discrete and continuous variables in Figure 1.2.
[return to top]
a
2
** All Chapters included
** Solutions and Answers for
Even-Numbered Problems
,Table of Contents are given below
1. Introduction
2. Basic Descriptive Statistics: Tables, Percentages, Ratios and Rates, and Graphs
3. Measures of Central Tendency
4. Measures of Variation
5. The Normal Curve
6. Introduction to Inferential Statistics: Sampling and the Sampling Distribution
7. Estimation Procedures
8. Hypothesis Testing I: The One-Sample Case
9. Hypothesis Testing II: The Two-Sample Case
10. Hypothesis Testing III: The Analysis of Variance
11. Hypothesis Testing IV: Chi Square
12. Bivariate Association for Nominal- and Ordinal-Level Variables
13. Association Between Variables Measured at the Interval-Ratio Level
14. Elaborating Bivariate Tables
15. Partial Correlation and Multiple Regression and Correlation
,Instructor Manual
Healey, Statistics: A Tool for Social Research and Data Analysis, 12e, 2027, 9798214158556;
Chapter 01: Introduction
TABLE OF CONTENTS
Purpose and Perspective of the Chapter .............................................................................................2
Chapter Objectives.............................................................................................................................2
What’s New in This Chapter ...............................................................................................................2
Chapter Outline .................................................................................................................................3
Solutions and Answers for Even-Numbered Problems: Chapter 1 ........................................................6
a
1
, PURPOSE AND PERSPECTIVE OF THE CHAPTER
The purpose of this chapter is to introduce students to the role of statistics in the research process. The
discussion is guided by the “Wheel of Science” as conceptualized by Walter Wallace. The text always
presents statistics in the context of the research enterprise. That is, statistics are presented as useful
tools for answering sociological questions and testing social science theories, never as ends in
themselves.
The chapter also distinguishes between descriptive and inferential statistics and univariate, bivariate,
and multivariate statistics. The distinction between discrete and continuous variables and the concept of
level of measurement is presented in this chapter and the latter is stressed throughout the text as an
organizational device and as a major criterion for selecting statistics appropriately. Exercises are
provided at the end of the chapter for reviewing the characteristics of the three levels of measurement
used in this text.
CHAPTER OBJECTIVES
The following objectives are addressed in this chapter:
1-1 Explain the role of statistics in social research and data analysis.
1-2 Identify the key stages and terms in social scientific research.
1-3 Distinguish between descriptive and inferential statistics.
1-4 Provide examples of discrete and continuous variables.
1-5 Describe three levels of measurement and cite examples of each.
[return to top]
WHAT’S NEW IN THIS CHAPTER
The following elements are improvements in this chapter from the previous edition:
• Added guidance on how to adopt a growth mindset to learning about statistics in a section called
Do Statistics Make You Nervous?
• Included a new illustration on causal diagrams in Figure 1.1.
• Offered new Statistics in Everyday Life box on the 2024 U.S. presidential election.
• Created a new Statistics in Everyday Life box on same-sex marriage based on a 2024 Gallup Poll.
• Included a new illustration of discrete and continuous variables in Figure 1.2.
[return to top]
a
2
